<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>求和</title>
</head>
<body>
<!--求和表单
请求路劲：calculate(相对路劲  /html/calculate)
    ../calculate （向前解析一层后发起请求   ）
  /calculate(直接从web容器下发起请求)
  请求方式：get    将输入框的参数拼接到url后   ?name=value&name=value
  http://localhost:8080/Web203_204/calculate?num_1=99&num_2=299
  -->
<form action="../calculate" method="post">
    <input type="text" name="num_1"> + <input type="text" name="num_2"> = ?
    <br>
    <input type="submit" value="求和">
</form>
</body>
</html>